Deck Beam Repair in Older Alberg 30s

This page talks about the use of two aluminum plates
to sister a delaminated main beam in the older Alberg 30's.
There are other techniques that have been used to fix this
problem. This technique was developed by Bruce Rankin and
had proved to be simple and durable

The plates should be 3/8" thick 6061 grade aluminum, cut to fit
the curve of the beam.
Rather than starting with drawing your own templates for the aluminum,
you can contact one of these companies which have already digitized the
shape. These companies use a water-jet cutting process that results in
a very clean cut.